8. Low-Fat Packaged Foods

“In order to create a product that has a good taste and texture while removing something you need to replace it with something,” Mass says. Hence why low-fat foods are often pack more sugar, calories, sodium, and unpronounceable chemicals than their full-fat counterparts. “What’s worse? The psychological factor involved in eating these foods,” she says. “They give people the feeling that this food is healthier and better for them than the alternative so they tend to eat larger portions and pay less attention to their own personal feelings of fullness and satiety.” For instance, research from the Cornell University Food and Brand Lab shows that when people snack on low-fat foods over full-fat ones, they end up eating about 28 percent more calories.